Spinning-machine.



H. F HAWKINS & M. L. STICKNEY.

. SPINNING MACHINE.

APPLICATION FILED JAN- 3. I916- Patented Jan. 9,1917.

2 SHEETSSHEET I Fig.1.

Inventors. Harry F. Hawkins, Myron tJSficKney y msmdq'iw UNITED STATES PATENT OFFICE.

HARRY I. HAWKINS. AND MYRON L. STICKNEY, OF MANCHESTER, NEW HAMPSHIRE, ASSIGNORS, BY MESNE ASSIGNMENTS, T DRAPER CORPORATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OIYMAINE.

' srmmue-mncmnn.

To all whom it may concern:

Be it known that we, HARRY F. HAWKIN and MYRON L. STICKNEY, citizens of the United States, and residents of Manchester, county of Hillsboro, State of New Hampshire, have invented an Improvement in Spinning-Machines,-of which the following description, in connection with the accompanying drawing, is a specification, like characters on -the drawing representing like parts. i

This invention relates to improvements in builder mechanisms for spinning machines and is especially adapted for winding filling carriers having slots.near the base thereof to receive the feeler and thereupon to initiate the action of the fillingreplenishing mechanism of an automatic loom or to effect some other change in the operation of the loom, and a spinning machine for winding bobbins of this particular type is herein selected for illustrating a preferred form of the invention.

In filling carriers of the type in which the feeler is adapted to enter a slot therein upon substantial exhaustion of fillingit is desirable that a sufiicient amount of filling be wound upon the base of the filling carrier beneath that portion of the slot which is presented to the feeler. This is to allow for a final pick through the loom with such an. anchorage upon the base of the filling carrier as will-insure the filling being caught by the usual temple thread cutter and so insure that the end will not curl up within the shed. We are aware that heretofore mechanism has been devised for this purpose in which a partial downward traverse has been laid upon a bobbin before the first full upward or service traverse was made. Such mechanism is exemplified in the patent of William Parker Straw No. 1,168,231, issued January 11, 1916 wherein means are provided for setting the builder actuating cam in such a manner as'to cause an initial downward traverse of the winding upon the bobbin before the first full upward or service traverse is begun. While the mechanism disclosed therein is successfully operable to wind bobbins for narrow looms the amount of yarn which is wound upon the base of the bobbin is necessarily limited and is insufiicient for wide looms.

The present invention provides means for Specification of Letters Patent. Application filed January 8, 1916. Serial No. 68,748.

Patented Jan. 9, 1917.

winding a greater amount of filling upon the filling carrier-before the first traverse of service winding is laid. This is accomplished by providing means for winding one or more short slow traverses of filling upon the filllng carrier commencing at a pointbelow the portion of the slot which is presented to the feeler, and thereafter commencing theusual service winding. In the preferred embodiment of the invention disclosed herein this is accomplished by providing primary and secondar traverse cams adapted to engage the bui der arm, means preferably being provided for setting the cams in such a manner as to produce an initial downward winding of filling upon the bobbin or other filling carrier, the primary cam first acting to effect a short, slow, traverse or plurality of traverses and after a predetermined amount has been wound being released from engagement with the builder arm so that during the subsequent operation the builder arm will be actuated by the secondary cam which acts to effect a service winding of relatively longer and more rapid traverse.

While in the preferred embodiment of the invention disclosed herein means are illustrated for setting the cams to a starting position it will be understood that the invention is not necessarily limited to the cam setting mechanism.

Other features of the invention and the nature thereof will more fully appear from the following description and the accompanying drawings, and will be pointed out in the annexed claims.

A preferred embodiment of the invention is disclosed herein as applied to a usual type of ring spinning machine.

In the drawings: Figure 1 is a front view of a portion of a spinning machine embodying our invention, Fig. 2 is a plan view of the mechanism for actuating the builder arm, Fig. 3 is a view of the cams and mechanism for operating the same on line 3-3 Fig. 2, looking toward the right, Fig. 4 is a detail view of one of the pins carried by the primary cam for releasing the cam shifting mechanism, and, Fig. 5 is a detail view of the dog upon the cam shifting mechanism which is adapted to retain the primary cam Y tending illustrated herein the spinning mechanism comprises the usual supporting frame 1 having a ladder 2 which supports a series of spindles 3 adapted to receive the bobbins or other filling carriers, the spindles being driven by whirls 4 in the usual manner A lifter rail 5 having thereon a series of rings 6 with usual travelers is supported upon a plurality of lifter rods 7 having at their lower ends suitable flat supporting members 8 resting upon rolls 9 adjustably supported upon the ends of counterweighted bell crank levers 1O pivoted at 11 in the brackets 12 depending from the under side of the ladder 2. The upright arms 13 of the bell crank levers are connected together by arod 14 and the foremost of said arms is connected to a chain 15 which runs over an idler 16 to a drum 17 carried by the builder arm 18. The drum 17 is rotated through the worm gear 19 and a worm upon the shaft 20 by the usual ratchet and pick pawl mechanism a portion only of which is shown herein as it is of a well known type.

The builder arm may be of any usual type such as a lever pivotally mounted at one end, carrying the drum 17 adjacent its opposite end and provided intermediately with a laterally extending lug or follower 21 which is engaged by the builder actuating cams. Inasmuch as the follower is essentially a part of the builder arm the cams will hereinafter be described as operating directly upon the builder arm.

In the illustrated construction the builder arm actuating mechanism comprises a bracket having a base 22 adapted to be secured by bolt and slot connections 23 to the underside of the ladder and having downwardly and rearwardly extending arms 24, 25 adapted to support the mechanism for setting and shifting cams in the manner which will hereinafter be described. The arm 24 of the frame as illustrated herein is provided with an extension 26 secured thereto by bolts 27, said extension being provided with a boss 28 which serves as a journal for the end of the usual cam shaft 29 which is also journaled in the end frame 1 and .is driven in the usual manner.

Primary and auxiliary cams 30 and 31 are rotatably mounted upon the cam shaft and are so connected as by pins 30 as to rotate in unison and yet be capable of separation. The cam 31 is provided with a laterally exsleeve 32 surrounding the shaft 29 and terminating in a disk 33 which is provided on one side with a clutch face 34 and upon the o posite side with positioning pins 35 prefera ly equal in number to the lobes in the cam. v

In order to transmit rotation to the cam shaft a clutch 36 havin a clutch face complementary to the clutc face 34 is slidably feathered upon the shaft 29, the hub 37 of said clutch member 36 being provided with an annular groove 38 engaged by a shipper 39, the faces of the disk 33 and the clutch 36 being normally maintained in contact by a helical spring 40 surrounding the shaft 29 and hearing at one end against the hub 37 and at the o posite end upon an adjustably secured collar 41 on the shaft 29.

The end of the shipper 39 is preferably in the form of a. yoke 42 partially embracing the hub 37 within the groove 38 and is provided near its opposite end with a hub 43 which is slidably mounted upon a shaft 44 which is journaled in the arms 24, 25 of the bracket. The shipper is provided intermediate of the hub and the forked end with an offset portion 45 in which is journaled an antifriction roller 46 adapted to be engaged by a cam face 47 upon the end of an arm 48 having a hub 49 which is rigidly secured to the shaft 44.

The shaft 44 is rotated through a foot lever 50 at the end of an arm 51 having a hub 52 rigidly secured to the shaft 44 and preferably having an extension 53 provided with angularly disposed faces 54, 55 adapted to engage the studs 35 upon the disk 33 of the cam sleeve 32. This mechanism constitutes the cam releasing and setting mechanism whereby the cams are positioned in such a manner that the initial winding upon the filling carrier will start at a predetermined position. As illustrated herein (see Fig. 3) this position is such that the first movement of the builder arm which is effected by the primary cam will cause a downward traverse of yarn upon the filling carrier.

In the operation of the machine the depression of the foot lever 50 serves to rock the shaft 44 about its axis causing the cam 47 on the arm 48 to engage the antifriction roll 46 of the shipper and to slide the shipper longitudinally of the shaft 44 disengaging the clutch 36 from thedisk 33. Further movement of the foot lever brings the inclined face 54 or 55 into engagement with one of the pins 35, rotating the disk 33 and with it the cams 31 and 30 until the other of the faces 54 and 55 engages another pin 35. The pins 35 are so disposed upon the disk 33 that when two ins are engaged by the faces 54 and 55 of tiie arm or extension 53, the cam will be positioned relatively to the builder arm so that the initial movement of the cam will cause a downward movement of the lifter rail. This position of the cam relatively to the builder arm is shown in Fig. 3 in which the follower 21 on the builder arm is shown in engagement with the primary cam 30 at such point that the cam, rotating in clockwise direction will force the builder arm downwardly thereby depressing the lifter rail in the manner aforesaid. When the cams have been set in m nus I as the cam 30 rotates the short and slowtraverse of winding upon the bobbin is effected.

During the primary winding the builder arm is actuated by the primary traverse cam 30. Such actuation is required only for a suflicient period to lay upon the bobbin enough yarn to roduce a full pick across the loom with a s ight excess for the purpose above noted. It 1s therefore necessary to provide means for removing the primary traverse cam from its operative relation to the builder arm upon the completion of the primary windingand for substitutin therefor the secondary traverse cam whic operates to lay the service winding. This is accomplished in the present invention by providing means operable at a' predetermined time to shift the primary cam axially of the cam shaft 29 at the completion of the primary winding, leavin the secondary cam in operative contact with the builder arm.

In order to provide for the windin of bobbins for looms of various widths we ave devised adjustable means for causing the release of the primary cam from its operative position in respect to the builder arm, the

range of adjustment illustrated being sulficient to provide for a single downward traverse or for a downward, upward and downward traverse .before the first upward traverse of service winding is begun under the actuation of the secondary or service traverse' cam.

In order to provide for the axial movement of the primary cam to move it from operative relation to the builder arm the cam 30 is provided with a hub 56 having an annular groove 57 which is engaged by studs 58 in the yoke 59 at the end of the lever 60 which conveniently is pivoted upon a stud 61 depending from the plate 62 attached to the under surface of the ladder 2, the lateral movement of the lever'60 serving-to move' the'primary cam 30 toward and from the secondary cam 31.

'Inasmuch as, during the operation of the machine, the builder arm is normally actuated by the .secondary or service cam 31,

means are provided for normally! forcing the cam 30 out of operative relation to the builder arm. As illustrated herein such means comprise a rod 63 pivotally secured to the lever 60 intermediate of its pivot and the yoke'59, the opposite end of said rod be- .ing journaled in the arm 24 of the supporting frame. A helical spring 64 mounted upon the rod 63 and abutting at one end against the arm 24 of the frame and at its vided means operable concurrentl with the cam setting mechanism for positioning the primary cam 30 in operative relation to the builder arm. This is accomplished in the preferred embodiment of the invention disclosed herein by providin the shipper 45 with an extension 66 provi ed with a bifurcated end 67 embracing the rod 63 adjacent to the collar 65 so that as the shipper is moved laterally (toward the left) by the depression of the foot lever 50 the forked end 67 of the extension 66 will engage the collar 65 and force the rod 63 axially (to the left, Fig. 2) thus oscillating the lever 60 about its pivot and forcing the primary cam 30 firmly against the'secondary cam 31.

The primary cam is locked in operative position in relation to the builder arm by a counterweighted latch 7 0 which is pivotally mounted upon a stud 71 carried by the arm 25 of the bracket. The latch 70 lies in the path of a dog 72 projecting upwardly from a collar 73 adjustably secured upon the rod 63 by a set screw 74 or other suitable means.

It will be obvious that as the rod 63 is moved axially by the shi per the counterweighted latch 70 will ri e up over the inclined surface of the dog 72 until it fallsbehind the vertical shoulder thereof, at which time it will lock the rod 63 against movement in the opposite direction, retaining thereby the primary cam 30' firmly in contact with the secondary cam 31.

To release the primary cam at the end of the primary winding and thereby to place the builder arm under the control of the secondary or service cam, the latch 70 is pro- 7 The stems extending through slots 79 in said cam are firmly secured to the cam by nuts 80. (See Fig. 4:.) The,pins 76 may thus be adjusted longitudinally of the slots 79 so as to trip the latch 70 at the required position in the rotation of the cams.

In, order to provide for release and removal of the primary ,-am from operative position either after a single downward traverse or after a downward, upward and downward traverse, means are provided whereby the mechanism for shifting the primary cam may not become operative under certain conditions until the predetermined preliminary traverses aforesaid have been given to the builder rail. This is accomplished by providing the primary and secondary cams with coincidently curved surfaces adapted to engage the builder arm so that so long as these coincidentsurfaces are engaged the weight of the builder arm and other mechanism connected thereto will prevent the axial movement of the primary cam 30 upon the cam shaft 29; Suitable depressions are made in the surface of the primary cam 30 to permit the shifting thereof at predetermined points. The preferred construction is illustrated in Fig. 3 in which it will be observed the primary cam 30 is provided with lobes 81 having portions 82 c0- incident with like portions of the lobes 83 of the secondary or service cam 31. Slight depressions S4, 8 etc., are provided in the surface of the cam 30 adjacent to the apexes of the lobes 83 of the cam 31 so that when the apexes of the cam 31 come into engagement with the builder arm, after the latch 70 is released from its engagement with the dog 72, the spring (3 will force over the leevr 0 carrying with it the primary cam 30 out of operative relation to the builder arm whereby subsequent movement of the builder arm will be effected through thesecondary cam 31 alone.

In the construction illustrated herein the length of the slot 79 in which the pin 76 is seated is sufficient, when the pin 76 is in the position indicated in dotted lines in Fig. 3,

, to trip the latch '76 at a point in the revolution of the cams in advance of the period at which the depression 84* comes opposite the follower 21 on the builder arm so that when the depression 8% comes opposite the follower 21, the follower will be engaged only by the lobe S3 of the secondary cam and the springGi, acting through the rod 63 upon the lever 60, will force the primary cam out of operative relation to the builder arm. If, however, the pin 7 6 is adjusted to the position illustrated in full lines in Fig. 3 it will not engage the tail 75 of the latch to trip said latch until the depression 84* has passed beyond the follower 21 upon the builder arm so that the weight of the lifter rail will maintain the follower upon the builder arm in contact with the primary cam 30 thus preventing the lateral shifting of the primary cam and causing it to actuate the builder arm until a recess 84 is reached in which the apex of the lobe 83 of the secondary cam alone engages the follower upon the builder arm. It will be obvious that by this construction the primary cam will actuate the builder arm to cause a downward, upward and downward traverse before the spring 64 can effectively operate to shift the primary cam out of operative relation to the builder arm. By this means a plu 'ality of'layers of primary winding will be placed upon the bobbin with a short, slow traverse thus adapting the bobbins for use in exceedingly wide looms.

In the operation of the mechanism disclosed herein a slight depression of the foot lever 50 first operates to cause the arm 48 and the cam 46 to move the shipper 45 to the left (Fig. 2) thus disengaging the clutch. Then the bifurcated end 7 of the shipper 45 operates against the collar 6:) on the rod (33. Further depression of the foot lever causes the shipper 45 with its bifurcated end 7 to move farther to the left causing the rod 63 to move axially and thereby to move the primary cam 30 into operative position as shown in full lines in Fig. Simultaneously the inclined surfaces 54-55 of the arm 53 engage the positioning studs 35 on the disk 33 and thereby rotate the cams $U-31 to a starting point so that the initial movement of the builder arm under the influence of the primary cam shall effect a slow short downward traverse of the yarn upon the bobbin. \Vhen the rod 63 reaches the limit of its movement toward the left the latch 70 'rules over and drops behind the dog 72 on the rod 63 thus retaining the primary cam 30 in operative relation to the builder arm. Upon the release of the lever 50 the spring 40 forces the clutch '56 again into engage ment with the disk 33 and upon the starting of the machine the cams rotate (in a clockwise direction, Fig. 3). \Vhen a stud 76 on the primary cam 30 engages the tail of the latch 70 the rod 63 is released so that the spring 64 tends to force the primary traverse cam out of operative relation to the builder arm. Such movement cannot however, be effected so long as the follower of the builder arm is in engagement with an operative surface of the cam 30. There is, however, suflicient lost motion in the connections between the rod 63 and the cam 36 to allow a slight movement of the rod 63 and thus prevent the latch 70 from again catching the dog 72 and holding the rod retracted. But when the depression 84 or 84 of the primary cam comes opposite to the builder arm the follower of the builder arm is-retained out of contact with the primary traverse cam 30 thereby permitting the stress of the spring 64 instantly to force the primary cam out of operative relation to the builder arm. into the position shown in dotted lines in Fig. 2.

It is to be understood that the mechanism disclosed herein is merely illustrative of the invention and that other devices and mechanisms may be used to accomplish the same filling carriers;

purpose within the spirit and scope of the claims hereto annexed.

Claims:

1. In a machine of the class described comprising a series of rotating spindles, cooperating yarn guiding means and a builder arm for causing relative movement therebetween to effect a traverse of yarn upon the filling carriers; means for actuating said builder arm to effect a primary winding of short slow traverses,,means operable upon the completion of the primary winding to actuate said builder arm to effect a service winding of relatively longer and more rapid traverses and means for positioning the builder arm actuating mechanism to a starting point which will cause an initial downward traverse of the yarn upon the bobbin.

2. In a machine of the class described comprising a series of rotating spindles, cooperating yarn guiding means and a builder arm for causing relative movement therebetween to effect a traverse of yarn upon the means for actuating said builder arm to effect a primary winding of short slow traverse, means operable upon the completion of a plurality of short, slow primary traverses to actuate said builder arm to effect a service winding of relatively longer and more rapid traverses and means for positioning the builder arm actuating mechanism to a starting point which will cause an initial downward traverse of the yarn upon the bobbin.

In a machine of the class describedcomprising a series of rotating spindles, cooperating yarn guiding means and a builder arm for causing relative movement therebetween to eflect a traverse of yarn upon the filling carriers; primary and" secondary traverse cams adapted to engage said builder arm, the primary cam effecting a short, slow movement ofthe builder arm and the secondary cam effecting a relatively longer and more rapid movement of the builder arm, and means operable upon engagement of the builder arm by a predetermined portion of said primary traverse cam for shifting the primary cam out of engagement with the builder arm.

4. Builder mechanism for spinning machines comprising a builder arm, a cam shaft, a primary and a secondary traverse cam mounted upon said shaft and rotated in unison thereby adapted to engage and actuate said builder arm, spring actuated means tending normallv to move said primary traverse cam axially of said shaft out of relative relation to said builder arm, trip mechanism adapted to maintain said primary traverse cam in operative relation to the builder arm and adjustable means carried by said primary cam for releasing said trip mechanism at a predetermined point in .the rotation of said cam.

' shaft, a. primary and secondary tatable in unison thereby and adaptedto engage and actuate said builder arm, said primary cam being movable axially upon said cam shaft, means for releasing said cams from said shaft, means for rotarily positioning said cams when released to a predetermined st nosition in relation to the builder arm, and means operable at a predetermined polnt in the rotation of said cams for moving said primary cam axially of said cam s aft todisengage the same from the builder arm whereby after a predetermined primarv winding has been laid the service winding will be effected through the actuation of the builder-arm by the secondary cam.

6. Builder mechanism for spinning machines comprising a builder arm, a cam shaft, a. primary and a secondary traverse cam mounted thereupon to rotate in unison and having partially coincidently curved adjacent to said coincidently curved surfaces and means for shifting theprimary cam axially' out of engagement with the builder arm when the secondary cam alone is engaged by the builder arm opposite said depression in the primary cam. i

7. Builder mechanism for spinning machines comprising a builder arm, a cam traverse cam mounted thereupon to rotate in unison and having partial coincidently curved builder arm engaging surfaces, means for releasing said cams from said shaft, means for positioning said cams relatively to said builder arm to a predetermined starting point to effect an initial downward traverse of the yarn upon the bobbin, spring actuated means tending to move said primary cam axially of said cam shaft out of operative relation to said builder arm, adjustable means upon said cams for releasing said spring actuated means, recesses in said primary cam adjacent said coincidently curved surfaces adapted topermit said spring actuated means to remove said rimary cam from operative relation to said builder arm at a predetermined point.

8. Builder mechanisms for spinning machines. comprising a builder arm, a cam shaft, primary and secondary cams rotatably mounted thereon to rotate in unison and adapted to engage said builder arm, means for releasing said cams from said cam shaft, means for positioning said cams to a starting position in relation to said builder arm, means for positioning the primary cam in operative relation to the bullder arm, a

of operative relation in respect thereto by spring actuated mechanism, a foot lever and means operable thereby simultaneously to unclutch said cams from the driving shaft and to position said primary cams in operative relation to said builder arm, means 0perable by a continued movementof said lever to position said cams to a starting point and means operable at a predetermined point in the rotation of said cams to release said primary cam with the builder arm.

10. Builder mechanism for spinning machines comprising a builder arm, a cam from engagement shaft, a primary and a secondary cam rotatably mounted thereupon to rotate in unison and adapted to engage and rotate said builder arm, said Primary cam being also movable axially-o ,said cam shaft out of operative relation to said builder arm, a member secured to said cam having on one side a clutch face and upon the opposite side a plurality of positioning studs, a relatively movable companion clutch member slidably mounted upon said cam shaft, means for moving the latter clutch member to disengage said clutch, means operable by said clutch disengaging means to position the primary cam in operative relation to said builder cam and a positioning lever operable after the disengagement of said clutch to rotate said cams to a predetermined starting point whereby the first winding movement effected by the builder arm will be a downward traverse upon the filling carrier.

In testimony whereof we have signed our names to this s ecification.

ABBY F. HAWKINS. MYRON L. STICKNEY. 

